Attachment for carbureters.



A. DE CLAIRMONT.

ATTACHMENT FOR CARBURETERS.

APPLICATION FILED NOV. 30, 1910.

1,033,386. Patented July 23,1912.

In (3 a 6 8 UNITED STATES PATENT OFFTCE.

ADOLFO DE CLAIRMONT, OF TOLEDO, OHIO.

ATTACHMENT FOR CARBURETERS.

Applicationfiled November 30, 1910. Serial No. 594,914.

T 0 all whom it may concern:

Be it known that I, ADOLFO DE CLAiRMoN'r, citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Attachments for Carbureters, of which the following is a specification.

This invention comprehc'nds certain new and useful improvements in attaclnnents for carbureters as usually applied to internal combustion engines for automobiles or the like, and one of the main objects of my invention is a manually controllable auxiliary air valve arranged to furnish, at the will of the operator or driver, an extra supply of pure air to commingle with the charged gases from the carbureter, when the car reaches a predetermined speed. For instance, it iswell known that a carbureter as now ordinarily constructed, while very efficient for relatively low speeds, furnishing a rich explosive mixture, is insufficient on relatively high speeds, owing to the fact that the suction created by four or six cylinders, is so great that the gasolene taken up is largely in excess of the requirements of the engine at high speed and the amount of air which is controlled automatically is not sulficient to dilute the mixture.

Hence it will be understood that it is one of the aims of my invention, by providing an auxiliary air valve controllable at the will of the operator, to save a considerable part of the gasolene at high speeds, to pro duce a better combustion in the cylinders and to thereby prevent the sooting and smoking which is usually caused by rich mixtures at high speeds. And the inventionalso has for its object a simple and efficient device of this character which is so arranged that it may be used effectively in starting the engine in cold weather 'or under such conditions as have heretofore required priming at the spark plugs, or priming cocks.

With these and other objects in view as will more fully appear as 'the description proceeds, the invention consists in certain constructions, arrangements and combinations of the parts that I shall hereinafter fully describe and claim.

For a full understanding of the invention, reference is,to be had to the following description and accompanying drawings,'in which:

Figure 1 is a vertical sectional view of my Specification of Letters Patent.

Patented July 23, 1912.

improved carbureter, the section being taken substantially on the line 11 of Fig. 2; Fig. 2 is a horizontal sectional view, the section being taken on the line 2-2 of Fig. 1; and, Fig. 3 is a perspective view of the device, illustrating an elbow that may be employed to secure the device to the side of the intake pipe of themain carbureter, instead of at the top thereof. I

Corresponding and like parts are referred to in the following description and indicated in all the viewsof the drawings by the same reference characters.

My improved ,carbureter attachment comprises a casing 1 which is preferably substantially cylindrical, as shown, and which is provided at one end 'with a neck 2 exteriorly screw threaded or otherwise arranged so as to be connected to a carbureter intake pipe. The upper end of the casing is provided with a preferably permanent top 3 formed with any desired number of preferably segmental slots 10f any desired size, said slots being preferably equally spaced from each other, and being controlled by a revoluble slide 5 which is mounted upon the top 3 and underneath a preferably detachable cover 3 number and preferably also in area to the slots 4, whereby the registering openings or slots in the top 3 and cover 3 may be partion, the revoluble slide 5 is provided with an outstanding handle 7, and a contractile The slide 5 and cover 3 are provided with slots 6 corresponding in.

spring 8 is secured at one end to said handle,

the other end of the spring being secured to a post 9 projecting outwardly from the easing 1, as shown.- Manifestly, the tension of the spring 8 is exerted to normally hold the slide 5 in closed position, so as to completely cover the slots or openings 4 in the top 3 of.the casing; The handle 7 may be 0 erated in any desired way, from the das board or from any other point in convenient proximity to the driver or'operator.

The casing 1 contains an open ended preferably cylindrical and longitudinally disposed'tube 10 which is suspended intermediateof its ends from the top 3, the side walls and inner end of the tube 10 being spaced from the wallsof the casing. The upper end of the tube 10 may be closed by a screw cap 11 or any other desired form of closure. The innefend of the tube is preferably closed by a screen 12, andthe tube is designed to contain any desired number of cupsl3 arranged in superposed relatlon to each other and resting one upon the other, the cups being adapted to hold absorbent material of any desired kind and being formed with screen bottoms '14. Prefer ably, the neck 2 of the casing is provided with a screen 15 where itopens into the carbureter intake pipe.

From the foregoing description in connection with the accompanying drawing, the operation of my improved carbureter attachment will be apparent. lVhenthe device is connected to the intake pipe of the oarbureter, the revoluble slide 5 will be held in closed position. so long as the engine is running at relatively low speeds, but when higher speeds are attained, and it is desired to mix with the charged gases additional amounts or proportions of pure air, the handle 7 is manipulated to turn the slide 5 in a direction toopen the slotsgt, more or less, as required, so as to admitinto the casing and carbureter intake pipe, additional amounts of fresh air. By this means, it is obvious that the-.extra supply of pure air, which is controlled by the operator-at will,

will mix with the charged gases from the carbureter, thereby reducing-the consum tion of the gasolene, producing a more e cient combustion in the cylinders and preventing the smoking and carbonizing which is usually ,caused byrich mixtures at high speeds. It will also be seen that in the use of my device as anauxiliary air valve, it has the advantage of acting as a cylinder cleaner. For example, in coasting down a hill, it is possible to shut off the throttle or gas valve, and by opening the auxiliary air valve to its fullest extent, fresh air may be introduced into the cylinders and eifectively clean them out, the burned out gases, excess of oil, soot and the like being expelled, all

' of which has a tendency to reduce the consumption of the gasolene and to cool the engine and clean the pistons.

As stated at the outset of the specification, 1

one of the objects of my invention is to produce a device of this character which may be used efliciently in starting a cold engine, in lieu of the ordinary priming methods. This function of the device is performed practically by the tube 10 with its clips 13 containing absorbent material. In the prac- 18, producing a properly saturated gas mix ture acting in conjunction with the main carbureter. After the engine or motor has been thus started, the cap 11 is agaln secured in place on' the tube 10 so as to prevent the air from passing in through the tube.

It is obvious that it will be necessary to use very little gasolene to moisten the absorbent material in the cups, and that the cups can be readily removed and cleaned and supplied with fresh absorbent material from time to time, as required.

As best seen in Fig. 3, the neck of the casing 1 may be provided with an extra elbow 2 so that it may "be securedto the side of the carbureter intake pipe instead of to the top of the same.

Having thus described the is claimed as new is:

A carbureter attachment, comprising a casingprovided with a neck formed for attachment to'the intake pipe of a carburetor, the casing beingalso provided with a perinvention, what manently attached top having openings" formed therein, .a tube disposed longitudinally and centrally in the casing and suspended therein by said top with the lower end of the tube in spaced relation to the wall of the casing, a slotted revoluble slide controlling the openings in the top, a plurality of cups supportedin superposed re lation to each other detachably in said tube, and eachformed with a screen bottom, absorbent material contained within said cups, a detachable closure for the outer end of the tube, the revoluble disk being formed with an outwardly projecting handle, and a contractile spring connected to said handle and to the casing.

In testimony whereof, I afiix my signature in presence of two witnesses.

ADOLFO DE CLAIRMONT. [1,. 8.] Witnesses:

E. M. KEINATH, RAY HARPER. 

